OxfordAQA International AS and A-level Economics: Production and specialisation (9640)

This page is based on the OxfordAQA International AS and A-level Economics (9640) specification, version 1.2, sections 3.1.3.1 (production and productivity) and 3.1.3.2 (specialisation, division of labour and exchange). Section 3.1 is International AS content (Unit 1). The quantitative skills in section 3.5 may turn up in any assessment, which is why the calculations below matter across the whole course. All data below is invented and illustrative.

Costs, economies of scale, revenue and profit are the rest of 3.1.3 and are taught on separate pages. For the wider course, see the OxfordAQA Economics hub and the printable checklist. Companion pages: the revision notes and the practice set. Scarcity and opportunity cost are in the economic problem guide.

What you must be able to do

Section	Outcome
3.1.3.1	Explain that production converts inputs (raw materials, capital, labour) into final output
3.1.3.1	Explain why the natural environment matters: it supplies inputs and can be damaged by production
3.1.3.1	Define productivity, including labour productivity, and calculate it
3.1.3.2	Explain the benefits and costs of specialisation and division of labour
3.1.3.2	Explain why specialisation needs an efficient means of exchange, including money as a medium of exchange
3.5 (QS1-QS9)	Use ratios, percentages, means and medians, index numbers and real values with this content

Production and the natural environment

Production converts inputs into final output. Inputs include raw materials, capital (machines, buildings, tools) and labour. A laundry combines water, detergent, washing machines and staff to produce clean garments. The same idea covers services: a call centre turns trained staff, computers and software into resolved customer calls.

The specification asks you to understand the link between production and the natural environment:

• The environment provides inputs: water, soil, timber, minerals, fish and energy sources. Without them, economic activity cannot continue.
• Production can damage the environment: polluting rivers, using up stocks faster than they renew, clearing land.

The two links form a loop. Damage reduces the future supply of inputs, so output that looks high today may not be sustainable.

Worked example 1: a farming region (Region F, illustrative). An underground water store holds 500 million cubic metres. Farms extract 40 million a year. Natural recharge adds 25 million a year.

Net fall = 40 − 25 = 15 million a year. After 10 years: 500 − (10 × 15) = 350 million, a fall of (150 ÷ 500) × 100 = 30%. Years until empty at this rate: 500 ÷ 15 = 33.3 years.

If extraction rose to 50 million, the net fall becomes 25 million a year and the store empties in 500 ÷ 25 = 20 years. Higher output now is bought with a lower stock of a vital input later. Evaluation: the true cost depends on whether substitutes exist (other water sources, drip irrigation) and how quickly the stock can recover.

Productivity

Productivity compares the output produced with the resources used to produce it. Labour productivity applies this to workers: output for each worker, or better, for each hour worked.

Labour productivity = total output divided by workers, or by total hours

Per hour is more reliable when working time changes, because a firm can raise output per worker just by lengthening the working week.

Worked example 2: a call centre (illustrative).

Year	Agents	Hours each	Total hours	Calls resolved
A	20	35	700	14,000
B	20	32	640	15,360
C	25	32	800	17,600

Year A: 14,000 ÷ 20 = 700 calls per agent; 14,000 ÷ 700 = 20 calls per hour. Year B: 15,360 ÷ 20 = 768 per agent; 15,360 ÷ 640 = 24 per hour. Percentage change A to B: per agent (768 − 700) ÷ 700 × 100 = +9.7%; per hour (24 − 20) ÷ 20 × 100 = +20%.

The per-hour rise is larger because agents also worked fewer hours. New software is one plausible cause: more capital per worker.

Year C: output rises (17,600 − 15,360) ÷ 15,360 × 100 = +14.6%, yet output per hour is 17,600 ÷ 800 = 22, a fall of 8.3%. Output rose because the firm hired more agents, not because each hour became more productive. Production (total output) and productivity (output per input) can move in opposite directions.

Productivity across an economy

Worked example 3: Country P (illustrative; output in billions of units at constant prices, hours in billions).

Year	Output	Hours	Output per hour	Index (year 1 = 100)
1	2,400	60.0	40.00	100.0
2	2,520	61.2	41.18	102.9
3	2,646	62.4	42.40	106.0

Index for year 3 = 42.40 ÷ 40.00 × 100 = 106.0. Productivity rose about 6.0% over two years, so on average output grew 5% a year while hours grew about 2% a year. Roughly, output growth is hours growth plus productivity growth. About 3% of each year’s 5% growth came from getting more from each hour.

Real versus nominal (QS7). Suppose year 2 output at current prices is 2,620.8 and the price index is 104 (year 1 = 100). Real output = 2,620.8 ÷ 104 × 100 = 2,520. Nominal output grew 9.2% but real output only 5%. Use real values to compare productivity over time; otherwise price rises look like extra output.

Mean and median (QS3). Five firms in a sector produce 18, 20, 21, 23 and 58 units per worker-hour. The mean is 140 ÷ 5 = 28. The median (middle value) is 21. One highly automated firm pulls the mean above four of the five firms, so the median describes the typical firm better.

What raises labour productivity

• More or better capital per worker, or newer technology.
• Skills, training, education and health of the workforce.
• Better organisation and management, including specialisation (next section).
• Better access to raw materials and a safe environment to work in.

Specialisation and division of labour

Specialisation is when a worker, business or area focuses on a narrow set of tasks or products. Division of labour is specialisation inside production: a job is split into stages and each worker does one stage.

Worked example 4: a kite workshop (illustrative). A kite takes four tasks: cutting (1 hour), framing (2 hours), covering (1 hour) and finishing (1 hour), 5 hours in total. Five workers each do 40 hours a week.

Everyone does everything. Moving between tasks wastes 0.5 hours each time, three times per kite: 5 + 1.5 = 6.5 hours per kite. Team output = 200 hours ÷ 6.5 = 30.8 kites. Output per worker-hour = 30.8 ÷ 200 = 0.154.

Division of labour. One cutter, two framers, one coverer and one finisher. With repetition, each task is 20% faster: cutting 0.8, framing 1.6, covering 0.8, finishing 0.8 hours. Two framers together complete a frame every 1.6 ÷ 2 = 0.8 hours. Every stage now takes 0.8 hours per kite, so the team makes 1 ÷ 0.8 = 1.25 kites per hour. In 40 hours: 50 kites. Output per worker-hour = 50 ÷ 200 = 0.25, a rise of (0.25 − 0.154) ÷ 0.154 × 100 = 62.5%.

Benefits

• Skill from repetition, so tasks are done faster and with fewer errors.
• No time lost switching between tasks or tools.
• Better use of capital: each machine stays in use and workers match tasks to their strengths.
• More output for each worker, which can allow lower unit costs, greater choice for consumers and rising living standards.

Costs

• Monotony. Repetitive work lowers motivation, raises absenteeism and staff turnover, and may hurt quality.
• Interdependence. If one stage stops, the whole line stops. In the kite workshop, one framer absent leaves framing at 1 ÷ 1.6 = 0.625 kites per hour, so output falls to 25 kites, a 50% drop.
• Narrow skills. A specialist worker finds it harder to change jobs if the product or technology changes, which risks unemployment for those workers.
• Coordination and training costs, and dependence on others for goods the specialist no longer produces.

Evaluation. The balance depends on how large the market is (a bigger market justifies more splitting of tasks), how skilled the work is, and whether management reduces the costs, for example through job rotation, cross-training or spare capacity at key stages. Over time, a workforce with narrow skills may struggle to adapt if demand or technology changes, so the gains can be less secure than they first look.

Exchange and the role of money

Specialisation means people no longer make what they consume. A potter, a weaver and a farmer each produce a surplus of one good, so they must exchange to get the others. This needs an efficient means of exchange.

Barter is swapping goods directly. It fails because of the double coincidence of wants: you must find a partner who holds the good you want and also wants the good you hold. Suppose the potter wants cloth, the weaver wants grain, and the farmer wants pots. No pair can trade directly. Money solves this: the potter sells pots to the farmer for money, then uses the money to buy cloth. Each trade becomes a sale for money followed by a purchase with money, so nobody needs a partner who wants their particular good.

Money as a medium of exchange is whatever people will take in return for what they sell, whatever they have produced. It removes the need for the double coincidence, so time once spent searching for trade partners can be spent on production, and specialists can concentrate on their task.

Worked example 5: how many prices? Under barter, every good needs an exchange ratio with every other good. With n goods that is n(n − 1) ÷ 2 ratios. With money, each of the n goods needs just one price in money.

Goods	Barter ratios	Money prices
8	28	8
50	1,225	50

The gap widens quickly as the number of goods grows. Money therefore lowers the time and information needed to trade, which is why specialisation and exchange develop together. Evaluation: money only works if people trust it; if it loses its value quickly, people may return to barter or use another money.

Common errors

• Claiming a productivity gain from higher output alone, without comparing the inputs used.
• Using output per worker when hours changed; use output per hour.
• Treating nominal figures as real when comparing years.
• Listing benefits of specialisation without a cost, or costs without a judgement.
• Describing barter as impossible; it is inefficient, not impossible.

Next, use the revision notes, then test yourself with the practice set and the free diagnostic tests.

Official syllabus

OxfordAQA, International AS and A-level Economics (9640) specification, version 1.2, sections 3.1.3.1 and 3.1.3.2, with section 3.5 (quantitative skills). First teaching September 2020.